Issue #8210 has been updated by Bernhard Schmidt.

This has become worse in 1.6.2, because in 1.6.1 the guest was at least 
(incorrectly, see bug #7723) detected as xenu and thus virtual. 

This problem can be triggered by the libvirt feature "copy Host CPU 
configuration", which replaces the "QEMU Virtual CPU..." string in 
/proc/cpuinfo with a real CPU description.
----------------------------------------
Bug #8210: virtual => physical for kvm guests
https://projects.puppetlabs.com/issues/8210

Author: Markus Falb
Status: Investigating
Priority: Normal
Assignee: Adrien Thebo
Category: library
Target version: 
Keywords: 
Branch: 
Affected Facter version: 


The Output from /proc/cpuinfo can not used reliable for telling that it is a 
kvm virtual machine.
On a CentOS 5.6 kvm Host with CentOS guests /proc/cpuinfo tells me:

for a smp guest
    model name  : QEMU Virtual CPU version 0.9.1

with only one cpu in the guest:
    model name  : Pentium II (Klamath)

but in both cases:
    $ dmidecode -t 4
    ...
    Manufacturer: QEMU
    ...

I believe it is possible to specify what cpu is used so on the commandline, so 
relying on the model name is not always working

For more information please also have a look at 
<br>[https://bugzilla.redhat.com/show_bug.cgi?id=707523](https://bugzilla.redhat.com/show_bug.cgi?id=707523)


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